const path = require('path')
const VueLoaderPlugin = require('vue-loader/lib/plugin')
const HTMLPlugin = require('html-webpack-plugin')
const webpack = require('webpack')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')

const isDev = process.env.NODE_ENV === 'development'

const config = {
  target: 'web',
  entry: path.join(__dirname, 'src/index.js'),
  output: {
    filename: 'bundle.[hash:8].js',
    path: path.join(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader'
      },
      {
        test: /\.jsx$/,
        loader: 'babel-loader'
      },
      {
        test: /\.css$/,
        use: [
          'style-loader',
          'css-loader'
        ]
      },
      
      {
        test: /\.(gif|jpg|jpeg|png|svg)$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 1024,
              name:'[name]-aaa.[ext]'
            }
          }
        ]
      }
    ]
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: isDev? '"development"':'"production"'
      }
    }),
    new VueLoaderPlugin(),
    new HTMLPlugin()
  ]
}


if(isDev){
  config.module.rules.push({
    test: /\.styl/,
    use: [
      'style-loader',
      'css-loader',
      {
        loader: 'postcss-loader',
        options: {
          sourceMap: true
        }
      },
      'stylus-loader'
    ]
  })
  config.devtool = 'eval-source-map'
  config.devServer = {
    port: 8000,
    host: '0.0.0.0',
    hot: true
  }
  config.plugins.push(
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoEmitOnErrorsPlugin()
  )
} else {
  config.output.filename = '[name].[chunkhash:8].js'
  config.module.rules.push(
    {
      test: /\.styl/,
      use: [

        MiniCssExtractPlugin.loader,

        'css-loader',
        'stylus-loader'

    ]
    },
  )
  config.plugins.push(
    new MiniCssExtractPlugin({
      filename:'styles.css'
    })
  )
}

module.exports = config